The data does not incluse the shetland islands as srtm data becomes unreliable at 60n. Users should be aware that these data are intended for use with a geographic information system gis or other special application software, and are not. The global 1arcsecond 30m srtm digital elevation model is free and made available publicly a through the united states geological surveys earthexplorer site. Srtm digital elevation data version 4 earth engine data catalog. This data is currently distributed free of charge by usgs and is available for download from the national map seamless data distribution system, or the usgs.
Under the data sets tab, select digital elevation srtm srtm 1arcsecond global. Download and clip a portion of the srtm 30m dem giving bounding box as wgs84 coordinates. Digital elevation model data of whole pakistan srtm 90m posted by city pulse team on june 05, 2009 the srtm digital elevation data, produced by nasa originally, is a major breakthrough in digital mapping of the world, and provides a major advance in the accessibility of high quality elevation data for large portions of the tropics and other. I remember doing our accuracy analysis for aster and srtm dem for the philippines for our remote sensing class. The data is published for download here, but its sliced into thousands of small files, and i dont see an ftp option for more efficient downloading. The shuttle radar topography mission srtm, dts99 from february 11 to 22, 2000 was an usgermanitalian effort to produce a first global digital elevation model dem. The processed data is available under the open databas license at the download srtm section. Open and merge dems on the file, open submenu do automatic filling of the voids. But heres a usgs earth explorer download guide to help you get started. Elevation provides easy download, cache and access of the global datasets srtm 30m global 1 arc second v003 elaborated by nasa and nga hosted on amazon s3 and srtm 90m digital elevation database v4.
To download srtm elevation data, firstly we have to define a location extent. Global spatiallydisaggregated crop production statistics data for 2010. Srtm data have been enhanced to fill areas of missing data to provide digital elevation data with a resolution of 1 arcsecond for global coverage. The glcf is also a convenient way to browse and download srtm data, in geotiff format for more information, see the glcf srtm page.
Shuttle radar topography mission srtm nonvoid filled usgs. By cgiarcsi january 4, 2019 february 8, 2019 continue reading cgiar consortium for spatial information cgiarcsi is the geospatial science community of practice that facilitates cgiars use of geospatial data and analysis in research. Nice slider comparing the 90m to the 30m data here. A tutorial for the processing with free software is under development howto section.
Flown on a space shuttle mission during 2000, srtm elevation data covers our globe from 60 degrees north to 56 degrees south and was previously only. The cgiarcsi geoportal is able to provide srtm 90m digital elevation data for the entire world. The shuttle radar topography mission srtm is an international research effort that obtained digital elevation models on a nearglobal scale from 56s to 60n, to generate the most complete highresolution digital topographic database of earth prior to the release of the aster gdem in 2009. So here is a short tutorial on how to download srtm s huttle radar topography mission 90m resolution data 3 arc seconds for an entire country using the raster and rgeos r packages. The nasa shuttle radar topographic mission has provided digital elevation data dems for over 80% of the globe. The tandemx 90m dem is a product variant of the global digital elevation model dem acquired in the frame of the german tandemx mission between 2010 and 2015, and has a reduced pixel spacing of 3 arcseconds 90m at the equator. Srtm consisted of a specially modified radar system that flew on board the space shuttle endeavour. Srtm did not produce data for the northernmost latitudes or antarctica. Srtm was a specially designed mission of the endeavour space shuttle, with a specially built sensor antenna, and aimed to map the earths land. Nepal digital model elevation dem humanitarian data. As a result the data tends to include the trees and buildings as these would be what reflects the radar signal. The srtm 90m dems have a resolution of 90m at the equator, and are provided.
Its january 1st and i made the new years resolution to post more this year. As with all other raster data products delivered by opentopography, srtm data can be downloaded seamlessly for a user defined area of. How to download 30m and 90m resolution srtm digital elevation. The dem represents ground surface topography, and excludes vegetation features. Users are prohibited from any commercial, nonfree resale. The dataset covers most of the globe, except polar regions, i. Earn 10 reputation in order to answer this question. This interface attempts to ease the pain of downloading 30meter resolution elevation data from the shuttle radar topography mission click on yellow tiles to download their corresponding data tiles come as zipped srtmhgt files at 1arcsecond resolution 3601x3601 pixels in a latitudelongitude projection, downloaded from nasa servers. See the africa image above and its caption at the pia04965. The data is presented in osgb coords and is free to use and distribute.
Digital elevation model data of whole pakistan srtm 90m posted by city pulse team on june 05, 2009 the srtm digital elevation data, produced by nasa originally, is a major breakthrough in digital mapping of the world, and provides a major advance in the accessibility of high quality elevation data. The srtm digital elevation data provided on this site has been processed to fill data voids and to facilitate its ease of use by a wide group of potential users. The srtm digital elevation data, produced by nasa originally, is a major. This shuttle radar topography mission srtm dem was created from level 1 data which was cleaned and had holes patched. Digital elevation model data of whole pakistan srtm 90m. For more information concerning the tandemx 90m dem, the.
The difference in elevation, when compared to a bare earth dem is assigned to the clutter height. Srtm still proves to be more accurate at 90m resolution than an aster. The shuttle radar topography mission srtm obtained 90 meter 3 arcsecond resolution data on a nearglobal scale between 56 degrees. On september 23, 2014, the white house announced the coming availability of a nearglobal 30meter m version of the widely utilized elevation dataset, the shuttle radar topography mission srtm. Gb srtm digital elevation model dem 90m edinburgh datashare.
Mar 15, 2017 shuttle radar topography mission srtm. This data is currently distributed free of charge by usgs and is available for download from the national map seamless data distribution system. This usgs tool allows you to download topographic data from a multitude of different sources. We say tends because there are variables, especially when dealing with trees. This will remove smaller holes, but not the large swiss cheese dems in many mountainous regions. You will have world satellite imagery as in figure 2. So, after we have srtm data loaded in qgis canvas, we can do many things such as generating contours from the srtm data. So here is a short tutorial on how to download srtm s huttle radar topography mission 90m resolution data 3 arc seconds for an entire country using the raster and rgeos r packages basics download single srtm tile.
These data have been processed and merged to provide continuous coverage of 91% of the globe. May 27, 2015 learn how easy it is to search and download freely available shuttle radar topographic mission srtm dems, that were collected in february 2000 in a special joint mission onboard sts99, using x. This data is provided in an effort to promote the use of geospatial science and applications for sustainable development and resource conservation in the developing world. The new data are available for download from the usgs eros data center see public data distribution for details. Learn how easy it is to search and download freely available shuttle radar topographic mission srtm dems, that were collected in february 2000 in a special joint mission onboard sts99, using x. Note that any download policies of the respective providers apply. See an index map of the newly available fullresolution data.
A 1 arc second data product was also produced, but is. Hdx data manager updated the dataset nepal digital model elevation dem over 5 years ago dita anggraeni added the tag eq2015000048npl to the dataset nepal digital model elevation dem over 5 years ago. Free world dem data, 3d in your computer grind gisgis. Srtm xsar digital elevation model dem 10 mosaics global abstract. Free download srtm data dem without registration youtube. The data can be configured as a dem and used for all profile and background generation or it can be used in conjunction with a bare earth dem such as ned data in gridfloat format as a clutter database.
On my previous tutorial, you can learn how to download srtm data from earthexplorer as well as using srtm downloader in qgis. We would like to show you a description here but the site wont allow us. See this tutorial how to add satellite imagery in qgis. This data is currently distributed free of charge by usgs and is available for download from the national map seamless data distribution system, or the usgs ftp site. Download srtm 30m digital elevation models for free. The national aeronautics and space administration nasa and the national geospatialintelligence agency nga participated in an international project to acquire radar data which were used to create the first nearglobal set of land elevations.
For example, in this case i added a world satellite imagery image from esri web map server. So this tutorial is basically will show you how to generate contour from a srtm file. They include data from nasas srtm digital topographic data, gtopo30 and aster global dems, as well as lidar and other radar data. The srtm digital elevation data, produced by nasa originally, is a major breakthrough in digital mapping of the world, and provides a major advance in the accessibility of high quality elevation data for. Global elevation data evaluation and basemaps bigdata earth. Nepal digital model elevation dem humanitarian data exchange. The shuttle radar topography mission srtm digital elevation dataset was originally produced to provide consistent, highquality elevation data at near global scope. Any download policies of the respective mirrors apply. Srtm data is collected by using a stereo radar scan of the earths surface. Users should be aware that these data are intended for use with a geographic information system gis or other special application software, and are not directly viewable in a browser. Map library can graphically open and merge tiles on the fly. This version of the srtm digital elevation data has been processed to fill data voids, and to facilitate its ease of use.
Srtm dem data is being housed on the usgs earth explorer. The new data are available for download from the usgs eros data. How to download 30m and 90m resolution srtm digital. Downloading free usgs dem data digital elevation model for use in a. If you want to download srtm data, those data are available at the us geological surveys eros data center for download. The shuttle radar topography mission srtm is a tremendous resource because of its high accuracy and its consistency as a snapshot of earths surface, acquired over just 10 days during february 2000. The data distributed here are in ehdr format, unprojected and referenced to the wgs84 geodetic datum. In this video, i have clearly shown the steps required to download 30m and 90m resolution srtm digital elevation model data from opentopography. The shuttle radar topography mission srtm was flown aboard the space shuttle endeavour february 1122, 2000. Click on the srtm30 tile to download the digital elevation map dem from the place you select.
Please see the linked pdf files for further documentation. This interface attempts to ease the pain of downloading 30meter resolution elevation data from the shuttle radar topography mission click on yellow tiles to download their corresponding data. The data could be downloaded under the open database license the data could be visualised in 3d with the virtual terrain software srtm digital terrain model of germany. Prior to release of the aster data, srtm was the one of the free dem available on the market. How to generate contour from srtm data in qgis gis tutorial. You can do it manually or simply just add a data into qgis map canvas. A 1 arc second data product was also produced, but is not available for all countries. There are 2 ways that srtm data can be used with pathloss 5. While there are many free versions available in the public domain, their spatial. Hdx data manager updated the dataset nepal digital model elevation dem over 5 years ago dita anggraeni added the tag eq2015000048npl to the dataset nepal digital model elevation dem over 5.